How do you clean the All Clear Pre-Filter?
You can clean the All Clear Pre-Filter by rinsing with a small amount of your treated water.

FAQ

Does the All Clear take care of water droplets that might be on the threads of the water bottle?All Clear does not purify surfaces on the outside of the drinking container including the threads of a water bottle. Users should check the threads and use a clean piece of cloth to wipe off the threads of the bottle before drinking.

Another way to address this issue is to use the All Clear Pre-Filter, particularly in fresh water sources like lakes or streams where water contact with the threads is more likely. The All Clear Pre-Filter conveniently snaps over the opening of the .75L bottle and is designed to keep the threads dry while submerging the bottle into your water supply. Always check the threads for water droplets before drinking.

Used this over the weekend with my All Clear. I like the All Clear, but unfortunately when I plunged the bottle into an icy stream the filter clogged and would not let much water in. My guess is that it froze and would not let water pass. What I had to do is use another bottle to get water from the stream, then dump it through this filter into the All Clear, then dump the water into my reservoir.